Interesting if absurdly huge slideshow from Paul Adams of Google, talking about our different overlapping networks. This very closely mirrors and supports what we are doing on the Landing, where we have been developing a context switcher to enable people to present different facets of their identities to different groups of people (as well as switch personal contexts for different needs).
Address of the bookmark: http://www.slideshare.net/padday/the-real-life-social-network-v2
